Furnace and evaporator.



'4, SHEETS-SHEET l.

. WIT/VESSES ggg;

J. L. PIERCE.

f uRNAcl-I AND EvAPonAToR. I. APPLICATION FILED FEB. 17| 1916-` Patented May 29, 1917'.v

4 SHEETS-SHEET 2..

,ggg/vrai? 65 567C@ v Y Br I y A nom/frs J. L. PIEHCE.`

FuRNAcE AND EvAPonATo.

APPLICATION NLED FEB. I7 |916.

VPaulented- May 29, 149,17.

4 SHEETS-SHEET. 3-

f1. L. PIERCE. FURNACE AND EVAPORATOH.

- remmen AND nvrone'roa.

I Specication'of Il'lettersl Patent.

numerous Pinnen, oir-MANILA, rHILrer'nvn ISLANDS.

Patented May ee, 191e.

Beit known that I, JAMES L. Praxen, 'a citizen of the United States, and ya resident of Manila, in the Philippine Islands, have a invented certain new and useful Improvements in rFurnaces and Evaporators, ofl

which the Vfollowing isla specification.v

^ My invention relates to means for use primarily in the drying of co ra, but which may be used for evaporating 't, vegetables, and the like, and the main object is to provide acontainer for the matter being evaporated, means for heating air, readily controlled means for delivering the heated air to said container in such manner as to prevent the :dames or the air heater from reaching said container,and a plurality of sepa'- rately removable tra s for the matter being evaporated in each o a plurality of separate compartments, all owhich. are in operative connection with the heated air supply. Y. `1 bly inv tion is fully described in the following speci'cation, of which the accomf panying drawings form a part, in which like characters refer to like parts in each' of the views, 'and in which A Figure 1 is a perspective viewer my 'apparatus ready for use, two compartments be@ ing` shown open; v .1 Y ig. 2 is a top lan view thereof; Fig. 3 is an en view thereof;

Fig. l is a section tekenen-the line or" Fig. 2'

Fig. 5

p Fig. 6 is a section taken on the line ofjB `1g.2;and

Fig. 7 lis a entary` perspectiveV o the evaporator. Y

Y 4f!J In the drawings formingsapart othis Vapplication l have shown a furnace 8 and an evaporator 9 connected by a pipe 10' through a blower 11 operated by a motor 12,l said pipe leading intoa mixing chamber 13. on the rear of the evaporator 9 and thence, through branches 14 and 15, to said evaporator, suitable dempers 16 and. 17 being provided for said branches. .4 The fuma-oe3, as shown in Fig. 6, has a grate 18 preferably, though not necessarily, designed to burn the hu'sks and shells of cocdanuts, a stack 19 for the escape of smoke,

v an air inlet pipe 20, and an j air heating chamber 21 to which the inlet pipe 20 leads 55: and which communicates' with therpipe 10 a section taken on'the line trolled by sliding dempers 30, whereby the by means of a pipe 22, -said chamber having a passage `23V arranged vertically therethrough to permit the passage of the products of combustion-:trom the grate to the stack 19. l i,

The evaporator 9 comprises a galvanized iron casing 24, although I do not limit myself to any speciic material, containing a plurality of compartments 25 opening throughthe front wall of the casing 24, as is clearly shown in Fig. 7, and provided, each, with a door 26 and suitable catches 27 therefor. The pipe branches 14 and 15 communicate directly' with the interior of they casing 24C butnot with the interiors oi the compartments 25,eXcept in a manner hereinafterpointed out' and, by referenceto Figs. 5 and fittwill be seen that the heated air will surroundthe compartments on'top, bottom,"andfthree sides, thus assuring an even' distribution foi, the' heat over the exposed 'surfaces of the' compartments.

:The dempers 16 and 1'? are shown-as con- I trolling jonlythe branch pipes 15 ad] acent the bottom ofi-the' casing 2%, but l may also provide dempers for the upper branch pipes 14, if desired, and l will provide a damper 28, Figs. 2 and 3, for the air'chamber 421 of the furnace and thus control the temperature oithefairforced into the evaporator, this Vdamper-T28 not being shown in detaihf as it 'may be of any desired type.

The bottoms of he compartments 25are provided with holes 29 therethrough conkheated air entering the bottoms of the compartments may be controlled, endl also provide a plurality of horizontal rows of perforations 31 in the side walls of the compartexteriors and interiors of said comparti-,

ments.

Each compartment is provided with a plurality of horizontally arranged, equidistant, supports' 32 on each side of the interior thereof and serving as supports for removable trays 33 for the reception of the matter to be evaporated, these vtrays being arranged directly over the rows of perforations 31 in the side walls of the compart- -ments whereby fresh heated air is supplied beneath the trays at all times, suitable ducts 34 being provided in the tops of the compertinents for the escape of the cooled,

ile

m' Maaate moisture-laden, air .from the compartments,

and suitable dampers' being provided for said ducts. e My evaporator may be made gofany nnme berof compartments and of any deslred size, the doors thereof being hollow to retain. the heat withinthe compartments, and I may employ as many of the trays as may be found desirable according tothe height of the evaporator. i

The device yieldsva'product of very high grade when used 'for drying copra, inas- Y' much as no smoke-'laden air reaches the fresh kernels and no flames, only pure heat- Y ed air coming in contact therewith and a constant supply of fresh heated air bemg assured.

As will be understoodlv do not limit-` myself to specific materials of which the device is constructed, nor to the exact structural details shown, except `such as comel within the scope of the following claims.

Having fully described my invention,

what l claim as new, and desire to secure by` Letters Patent, is

y1. A device of the class described, com-` ed air to the interior of said casing around each compartment, means for leading said air Ito each compartment beneath each tray,

and meansfor leading of each compartment.\

2. A device oftthe class described, comthe air' from the top prising a casing'divided. inf-,0 compari-,menta -the top, bottom, back andtwo sidejwausof each of which areseparated from said casing, a door in thefront of each compartment, means for leading heated air to the interior of said casing, a plurality of trays in each compartment, vthe .walls of each com artment being perforated beneath each ray,

and la controlled flue for each compartment.

- 8.' A device `-of the class described, comprising a casing divided into-compartments the top,- bottom, back and two side walls of each ofwhich are separated from said casing, and perforated along superimposed supports, controlled means for leading air through the bottoms of said compartments,

. a door for each compartment, means for leadingheated airto said casing and -thence to said compartments, and' means for controlling the escapeof air from said com' partments.'

4,-. A device o fl the classvdescribed, comprising a casing divided into compartments the top, bottom, back and two side walls of each of which are separated from lsaid casing, a door for each com artment, controllable means for vleadingl cated air to said casing, controllable means for leading said air to said compartments,` controllable means for leading the air from said compartments, and a pluralityrof. superimposed trays in the path of the heated air through said compartments.Yv i

In testimony Vwhereof I have signed my name to this specification in the presence of two subscribin witnesses.

- J 1 ES LOUIS PERCE., -Witnessesz lhorizontal lines, tray supports above said 'lines of perforations, a tray on each' set of 

